Concrete was poured into molds to create decorative concrete panels that were then installed on the facade of a building in France. Wonder if you could do something similar with rope?
companies that sell decorative concrete screen blocks - comprehensive list - Retro Renovation
For sidewalks and driveway. Galaxy Quartz Decorative Concrete Floor - The Home Depot
Concrete Table Top by Lia Griffith Full Tutorial: this would be my ideal kitchen counter tops